System for automatic feedback and adjust transmittal pulling force of the glass fragment

ABSTRACT

A system for automatic feedback and adjust transmittal pulling force of the glass fragment comprises a delivery machine, a glass broken machine and a recycle box, the glass fragment is transmitted by the delivery machine and triturated by the glass broken machine, and then transported them to the recycle box, the delivery machine comprises a driving motor, a conveyer belt and a driving roller, the conveyer belt is surrounded between the driving rollers, the driving roller is turn round by the driving of the driving motor to lead the conveyer belt rotating at the same time, and then the glass fragment on the conveyer belt could be transported into the glass broken machine for triturating and recycling. Additional, an electromagnetic control system is provided for automatic adjusting transmittal pulling force of the conveyer belt depends on the distance between the two driving rollers, which is connecting with the driving roller.

FIELD OF THE INVENTION

The present invention relates to a driving system, and more particularlyto a system for automatic feedback and adjust transmittal pulling forceof the glass fragment by the control of the current negative feedbackcircuit to the pulling force of the conveyer belt.

BACKGROUND OF THE INVENTION

In the current system of the glass fragment transmitting, the drivingroller is usually rolls some glass fragments. With long time friction ofthe glass fragment on the driving roller, the conveyer belt will causeto be loose and then the pulling force be reduced, so that the glassfragment cannot be transported to the glass broken machine. As a result,there are a lot of glass fragments resisted on the conveyer belt. Itshould spend many time and energy to clean the conveyer belt and thedriving roller. The cleaning process will lead the manufactureefficiency decline and the working life of the transmitting systemshorten.

Therefore, it is necessary to provide a system for automatic feedbackand adjust transmittal pulling force of the glass fragment, so as toensure the normal transporting of the glass fragment and improve themanufacture efficiency.

SUMMARY OF THE INVENTION

In view of disadvantages of the prior art, the major purpose of theinvention is to provide a system for automatic feedback and adjusttransmittal pulling force of the conveyer belt to keep the glassfragment transport smoothly.

The present invention is provided a system for automatic feedback andadjust transmittal pulling force of the glass fragment, which comprisinga delivery machine, a glass broken machine and a recycle box, the glassfragments are transported by the delivery machine and triturated by theglass broken machine, and then transmitted them to the recycle box. Thedelivery machine comprising a driving motor, a conveyer belt and adriving roller, the conveyer belt is surrounded between the two drivingrollers, the driving roller is turn round by the driving of the drivingmotor to lead the conveyer belt rotating at the same time, and then theglass fragments on the conveyer belt could be transported into the glassbroken machine for triturating and recycling, wherein, anelectromagnetic control system is provided for automatic adjusting thetransmittal pulling force of the conveyer belt depend on the distancebetween the two driving rollers, which is connecting with the drivingroller.

Perfectly, the electromagnetic control system comprises a battery, twomagnetic coils, an ampere meter and a current negative feedback circuit,wherein, two electromagnets of the magnetic coils are located facetoward to bring the opposite electromagnetic repulsive force onelectricity. The current could be adjusted with the current negativefeedback circuit. The ampere meter is provided for measuring the presentcurrent of the magnetic coils and adjusting the variety of the currentby feeding back the current value to the current negative feedbackcircuit, which is electric connecting between the magnetic coils and thecurrent negative feedback circuit.

Perfectly, the current negative feedback circuit is in series with avariable resistance and the ampere meter, the current negative feedbackcircuit could adjust the resistance and the current value depending onthe present current value.

Perfectly, the current negative feedback circuit can control the currentof the magnetic coils to keep the transmittal pulling force of theconveyer belt constantly.

The transmittal pulling force will be decreasing with the currentreducing, then the current negative feedback circuit can reduce thevariable resistance value to raise the current and the repelling forcebetween the two electromagnets, and then the distance between thedriving rollers will be decreasing to cause the transmittal pullingforce of the conveyer belt increase.

The transmittal pulling force will be decreasing with the currentraising, then the current negative feedback circuit can increase thevariable resistance value to reduce the current and the repelling forcebetween the two electromagnets, and then the distance between thedriving rollers will be shortened to cause the transmittal pulling forceof the conveyer belt reduce.

Perfectly, the magnetic coils comprising a fixed coil and a movablecoil, a fixed electromagnet is located in the fixed coil and a movableelectromagnet is also located in the movable coil, the magnetic poles ofthe fixed electromagnet and the movable electromagnet are face toward.The driving roller comprises a fixed driving roller and a mobile drivingroller. The distance between the two driving rollers can be adjustedwith the horizontal moving of the mobile driving roller. The mobiledriving roller is connecting to the movable electromagnet with asteadying bar, the mobile driving rollers can adjust the distancebetween the two driving rollers with the pulling of the oppositeelectromagnetic repulsive force.

Compared to the prior art, the system for automatic feedback and adjusttransmittal pulling force of the glass fragment of the present inventioncomprising the following advantages:

(1) If setting one of driving roller is to be a fixed driving roller,and another driving roller is to be a mobile driving roller, thedistance between the two driving rollers can be adjusted with theparallel shifting of the mobile driving roller, and then adjust thetransmittal pulling force of the conveyer belt to avoid the conveyerbelt too loose or too tighter, so as to ensure the glass fragments canbe transported keep smoothly.

(2) Under the control of the electromagnetic system electricallyconnecting with the driving roller, the distance between the drivingrollers can be adjusted. The outputting current can be adjusted with thechange of the magnetic force. When the magnetic force is reduced, theresistance value will be reduced and the current will be raised. Whenthe magnetic force is increased, the resistance value will be decreasingand the current will be reduced. Under the feeding back control of thecurrent negative feedback circuit, the magnetic force can be adjusted inreal time to adjust the distance between the two driving rollers, so asto ensure the pulling force of the conveyer belt remain steady.

DESCRIPTIONS OF THE DRAWINGS

FIG. 1 is a schematic view showing of the system for automatic feedbackand adjust transmittal pulling force of the glass fragment of theinvention; and

FIG. 2 is a schematic view showing of the electromagnetic control systemof the system for automatic feedback and adjust transmittal pullingforce of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Refer to FIG. 1, the present invention provides a system for automaticfeedback and adjust transmittal pulling force of the glass fragment 100,which comprising a delivery machine 1, a glass broken machine 2 and arecycle box 3, the glass fragments are transported by the deliverymachine 1 and triturated by the glass broken machine 2, and thentransported them to the recycle box 3. Wherein, the delivery machine 1comprises a driving motor 10, a conveyer belt 12 and a driving roller14. The conveyer belt 10 is electric connecting with the driving roller14 for driving the rotating of the driving roller 14. The conveyer belt12 is surrounding between the two driving rollers 14. The driving roller14 is turn round by the driving of the driving motor 10 to lead theconveyer belt 12 rotating at the same time, and then the glass fragmentson the conveyer belt 12 could be transported into the glass brokenmachine 2 for triturating, at last, the triturated glass fragments canbe transported into the recycle box 3 for recycling by a belt.

In the preferably embodiment of the present invention, refer to FIG. 2,the system for automatic feedback and adjust transmittal pulling forceof the glass fragment 100 further comprises an electromagnetic controlsystem 5 electrically connecting with the driving roller 14. Theelectromagnetic control system 5 is provided for automatic adjusting thetransmittal pulling force of the conveyer belt 12 depends on thedistance between the two driving rollers 14. Wherein, theelectromagnetic control system 5 comprises a battery 50, two magneticcoils 52, an ampere meter 54 and a current negative feedback circuit 56electrically connecting together. The battery 50 is electricallyconnecting with the current negative feedback circuit 56 for providingpower. The magnetic coils 52 are in series with each other. The amperemeter 54 is electrically connecting between the outputting of themagnetic coils 52 and the current negative feedback circuit 56 forrecording the instantaneous current value from the magnetic coils 52,and then the instantaneous current is outputted to the current negativefeedback circuit 56 for feeding back to the input current of themagnetic coils 52.

In the present embodiment of the invention, the magnetic coils 52comprise a fixed coil 52 a and a movable coil 52 b. The source wire isleaded into from the fixed coil 52 a and leaded out from the one end ofthe movable coil 52 b with surrounding the fixed coil 52 and the movablecoil 52 b. A fixed electromagnet 520 is located in the fixed coil 52 aand a movable electromagnet 522 is also located in the movable coil 52b. According to the principle of electromagnet attraction, the coilingway of the source coil and the current direction has many ways. Themagnetic pole of the fixed electromagnet 520 is face toward to that ofthe movable electromagnet 522. In the present embodiment, the N pole ofthe fixed electromagnet 520 is face toward that of the movableelectromagnet 522, so a repulsive current is produced. The twoelectromagnets of the magnetic coils are located face toward to bringthe opposite electromagnetic repulsive force on electricity, thedistance between the two driving rollers 14 can be adjusted with thechange of the opposite electromagnetic repulsive force.

According to F=K (i2/d2), the formula shows that the magnetic force “F”between the two electromagnet is in proportion to the square of thecurrent “i” and is inversely proportional to the distance “d” betweenthe two electromagnets. That is to say, the magnetic force “F” will bedecreasing with the increasing of the current and be decreased with theincreasing of the distance between the two electromagnets. Therefore,the control of the change of the magnetic force “F” depends on thecontrol of the variety of the current. The adjusting of the current canbe controlled by the current negative feedback circuit. The transmittalpulling force can be constant with the feeding back of the current.

The driving roller 14 comprises a fixed driving roller 140 and a mobiledriving roller 142, the distance between the two driving rollers 14 canbe adjusted with the horizontal moving of the mobile driving roller 142,so as to adjust the transmittal pulling force of the conveyer belt 12.

The mobile driving roller 142 is connecting to the movable electromagnet522 with a steadying bar 144, the mobile driving rollers 142 can adjustthe distance between the driving rollers 14 with the pulling of theopposite electromagnetic repulsive force.

The ampere meter 54 is provided for measuring the present current of themagnetic coils 52 and adjusting the variety of the current by feedingback the current value to the current negative feedback circuit 56,which is electric connecting between the magnetic coils 52 and thecurrent negative feedback circuit 56.

For adjusting the current in real time, a variable resistance 58 iselectrically connecting with the magnetic coil 52 and the currentnegative feedback circuit 56. The current can be adjusted with thechange of the resistance value of the variable resistance 58.

The controlling process of the current negative feedback circuit isfollowing:

If the joint between the conveyer belt 12 and the driving roller 14 isloose, the transmittal pulling force of the conveyer belt 12 will bedecreased. At the same time, the movable electromagnet 522 can movetoward the movable coil 52 b with the opposite electromagnetic repulsiveforce, so that the distance between the magnetic coils 52 will bedecreasing with the pulling force of the conveyer belt 12 increasing.And then the conveyer belt 12 will be more tightened between the twodriving rollers 14 to send the glass fragment with a normal pullingforce.

With the distance between the magnetic coils increasing, the magneticforce and the current will be reducing, and the pulling force of theconveyer belt will be reducing. At that time, the current negativefeedback circuit 56 can reduce the variable resistance value to raisethe current and the repelling force between the two electromagnets, theforce resist on the conveyer belt 12 and the driving roller 14 should beincreased continually, which is bringing from the electromagnets. Andthen the distance between the driving rollers 14 will be decreasing tocause the transmittal pulling force of the conveyer belt 12 increasetogether, so as to achieve the adjusting of the transmittal pullingforce. The glass fragments can be normally transported on the tightenconveyer belt 12.

On the contrary, If the pulling force of the conveyer belt 12 is toolarger, the conveyer belt 12 will inward impose on the driving roller 14to push the electromagnets moving toward inside, and then the distancebetween the fixed electromagnet 520 and the movable electromagnet 522will be reduced and the magnetic force be increased. The transmittalpulling force of the conveyer belt 12 will be decreasing with thecurrent raising, then the current negative feedback circuit 56 canincrease the variable resistance value to reduce the current and therepelling force between the two electromagnets, and then the distancebetween the driving rollers 14 will be shortened to cause thetransmittal pulling force of the conveyer belt 12 reduce and keep thecurrent and the magnetic force steady. As a result, the glass fragmentscan be transported on the tighten conveyer belt 12.

The system for automatic feedback and adjust transmittal pulling forceof the glass fragment can automatic adjust the balance between theintensity of the current and the distance of the electromagnets, forachieving a stable state of the transmittal pulling force without manualoperation. As a result, if the conveyer belt is too loose, the glassfragment will be resisted on the conveyer belt. If the conveyer belt istoo tightening, then the elasticity of the conveyer belt will bereduced. Now the problems could be solved that the glass fragment wouldnot be transported to the glass broken machine on a loose or tightenconveyer belt, so the manufacture efficiency is improved.

What is claimed is:
 1. A system for automatic feedback and adjusttransmittal pulling force of the glass fragment, which comprising adelivery machine, a glass broken machine and a recycle box, the glassfragment is transmitted by the delivery machine and triturated by theglass broken machine, and then transported them to the recycle box, thedelivery machine comprising a driving motor, a conveyer belt and adriving roller, the conveyer belt is surrounded between the two drivingrollers, the driving roller is turn round by the driving of the drivingmotor to lead the conveyer belt rotating at the same time, and then theglass fragment on the conveyer belt could be transported into the glassbroken machine for triturating and recycling, wherein, anelectromagnetic control system is provided for automatic adjusting thetransmittal pulling force of the conveyer belt depend on the distancebetween the two driving rollers, which is connecting with the drivingroller, the electromagnetic control system comprises a battery, twomagnetic coils, an ampere meter and a current negative feedback circuit,two electromagnets of the magnetic coils are located face toward tobring the opposite electromagnetic repulsive force on electricity, thecurrent could be adjusted with the current negative feedback circuit. 2.The system for automatic feedback and adjust transmittal pulling forceof the glass fragment according to claim 1, wherein the current negativefeedback circuit is in series with a variable resistance and the amperemeter, the current negative feedback circuit could adjust the resistancevalue and the current depend on the present current value.
 3. The systemfor automatic feedback and adjust transmittal pulling force of the glassfragment according to claim 2, wherein the current negative feedbackcircuit can control the current of the magnetic coils to keep thetransmittal pulling force of the conveyer belt remain constantly.
 4. Thesystem for automatic feedback and adjust transmittal pulling force ofthe glass fragment according to claim 2, wherein the ampere meter isprovided for measuring the present current of the magnetic coils andadjusting the variety of the current by feeding back the current valueto the current negative feedback circuit, which is electric connectingbetween the magnetic coils and the current negative feedback circuit. 5.The system for automatic feedback and adjust transmittal pulling forceof the glass fragment according to claim 3, wherein the transmittalpulling force will be decreasing with the current reducing, then thecurrent negative feedback circuit can reduce the variable resistancevalue to raise the current and the repelling force between the twoelectromagnets, and then the distance between the driving rollers willbe decreasing to cause the transmittal pulling force of the conveyerbelt increase.
 6. The system for automatic feedback and adjusttransmittal pulling force of the glass fragment according to claim 3,wherein the transmittal pulling force will be decreasing with thecurrent raising, then the current negative feedback circuit can increasethe variable resistance value to reduce the current and the repellingforce between the two electromagnets, and then the distance between thedriving rollers will be shortened to cause the transmittal pulling forceof the conveyer belt reduce.
 7. The system for automatic feedback andadjust transmittal pulling force of the glass fragment according toclaim 3, wherein the magnetic coils comprising a fixed coil and amovable coil, a fixed electromagnet is located in the fixed coil and amovable electromagnet is also located in the movable coil, the magneticpoles of the fixed electromagnet and the movable electromagnet are facetoward.
 8. The system for automatic feedback and adjust transmittalpulling force of the glass fragment according to claim 1, wherein thedriving roller comprising a fixed driving roller and a mobile drivingroller, the distance between the two driving rollers can be adjustedwith the horizontal moving of the mobile driving roller.
 9. The systemfor automatic feedback and adjust transmittal pulling force of the glassfragment according to claim 7, wherein the mobile driving roller isconnecting to the movable electromagnet with a steadying bar, the mobiledriving rollers can adjust the distance between the two driving rollerswith the pulling of the opposite electromagnetic repulsive force.